Please tell me the Skull Crusher stance.

Skull Crusher is good for shoulder exercises~
First, stand with a dumbbell in both hands and slightly bend your knees.
Fix both hands and bend your elbows at a right angle, lifting the dumbbells above your shoulders.
In that state, slowly lower the dumbbells.
This exercise is effective for the deltoid muscles.
However, to prevent injury, maintain correct posture and avoid excessive weight.